Reliable EFR32MG21 chip. Built with the proven EFR32MG21 chipset, this USB dongle offers low-latency communication and excellent compatibility with Zigbee 3.0 devices—ideal for building a dependable smart-home network. Compact & Easy to Install. The lightweight, compact design fits conveniently in crowded USB ports on PCs, mini-servers, or Raspberry Pi, making it suitable for any smart-home setup. Wide platform compatibility. Fully compatible with Home Assistant, Zigbee2MQTT, openHAB, and more. Supports a wide range of Zigbee 3.0 brands, including Philips Hue, Aqara, IKEA Tradfri, and SONOFF, enabling flexible device integration. Flexible firmware flashing. Switch easily between Zigbee Coordinator, Router mode, or Thread RCP by flashing firmware through the SONOFF Dongle Flasher or official Add-on tools. Includes USB extension cable. Comes with a USB extension cable to help position the dongle away from USB 3.0 interference sources, improving signal strength and ensuring more stable Zigbee and Thread network performance.